509996 has 12 divisors (see below), whose sum is σ = 908040. Its totient is φ = 250560.

The previous prime is 509989. The next prime is 510007. The reversal of 509996 is 699905.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 509996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (75670).

2⁵⁰⁹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

509996 is a deficient number, since it is larger than the sum of its proper divisors (398044).

509996 is a wasteful number, since it uses less digits than its factorization.

509996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 509996 is about 714.1400422886. The cubic root of 509996 is about 79.8954885264.

The spelling of 509996 in words is "five hundred nine thousand, nine hundred ninety-six".